Charge former for internal-combustion engines



Aug. 13, 1929. J. M. LosAcK CHARGE FORMER FOR INTERNAL COMBUSTION EiIGINES Filed Sept. 15. 1927 2 sheetsi-sheet I'I'IIIIIII vii 13, 1929- J. M. LosAcK CHARGE FORMER FOR INTERNAL CQMBUSTION ENGINES Filed Sept. 15. 1927 2 Sheets-Sheet manifold of the engine.

A further object is to provide a device ofthis-characterwhich has been foundto be Patented Aug. 13,1929.

UNITED, STATES ,724,097 TE T OFF CE- JOHN M. Lesson, on oncnnnn', Texas.

cannon FORMER non inrmmnn-comnus'rron enemas.

Application filed September..13, 1927. Serial No. 219,292.

This invention relates to 'carbur'eters, and

the general object of theinvention is to provide a carbureter'of such construction that the liquid fuel is atomized by the 'introduction of exhaust into the liquid fuel chamber, this atomized fuelbeing then drawn into a mixing chamber where it is mixed with air and carriedto fthe intake gallon of gas than other carbureters known to me. I v p hfy invention is illustrated in the accompanying drawings, wherein:

"and is bolted to the flange 11 by the bolts 14 Figure 1 is a vertical sectional view through a charge former constructed in accordance with my invention; v

Figure 2 is a fragmentary sect'on on the same line as Figure 1,:showing the valve partially open; v

Figure 3 is a section on the line 3--3 of Figure 1; f

Figure t is a vertical sectional view of .a modified form of the carbureter; I

Figure 5. is a sectional view of a modified form of sleeve cap used in the carbureter.

Referring to these drawings, designates the bottomsection of a gasoline or fuel chamber. This is flanged at its upper end, as at 11. Attached to these flanges as, for instance, by bolts is a conical top 12 which forms the inner wall of an exhaust chamber 13. This exhaust chamber is also flanged at its lower end, fits down over the .top 12,

which'pass through-the three flanges of'the bottom 10, the top 12, and the outer wall' 15 of this exhaust chamber. The outer Wall of the exhaust chamber is provided'with an exhaust inlet 16 and an exhaust outlet 17- disposed adjacent the top of the exhaust chamber.

Disposed adjacent the bottom 19 of the section 10 is a jfalsebottom 18 which is anfi nular in form 'andhas an upwardly extendamount of air to the wall 12 and opening through this'wall.

The false bottom around its outer margin is formed with a plurality of fine perforations 2l'and the exhaust from the. exhaust.

chamber '13 is drawn. downward through the branches 20 and the central pipe 20 and passes between the'bottom 19 andthe false bottom 18 and up'through theperforations' 21 and, through the'fluid gasoline or other fuel which is disposed upon the bottom 19.

fThe-uppenend of the wall 12 supports a tubular m xing nozzle 22 which extends down below the apex of the wall 12'and. extends above this-apex and is provided with perforations 23. Operating over the upper end of this mixing nozzle 22 is a sleeve-like cap 24 constituting a valve 'which is closed at its upper end and which is of such length that when it, is lowered itcompletelycovers all of the perforations 23. Thiscap may be named to any desired degree by the adjustment screw or rod 25: which; extends up through an opening in the outlet pipe 26.

p This outletpipe at its lower end fits down upon the a ex of the wall 12'at itsjunm tion with t e top vof the exhaust chamber 13 and is provided. with perforations or openings at its lower end through which air 'inay enter the-lowerend of the outlet pipe and pass upward around tlieamixing nozzle. A sleeve valve 27 is disposed around the base portion of theou'tlet pipe and may be raised or lowered by any suitable means so as to allow a greater or less fuel to the fuel chamber is stopped and when the level of the fuel falls the float will fall, permitting the inletof fuel to the chamber. A drain cock'30 is provided in the bottom of section 10.

The operation of this carbureter will. be obvious from what has gone before. Upon the suction stroke of the engine, the gas or vapor accumulated in the upper portion of the fuel chamber is carried out through the nozzle 22 and into'the outlet pi c. This suction, and the pressure of the ex iaust gas itself, causes a certain portion of the exhaust gases to be drawn downward through the ducts 20, the pipe 20 and upwardly pass into the interior of extends into the side I I through the 1 perforations 21 and upward through the layer-of liquid fuel whichhas collected at the bottom-of the fuel chamber.

This causes .the atomizing of'the gasoline or other fuel and this fine vapor or pure gasoline and the gases from the exhaust are exhaust vapor-by its heat acts to atomizef andvaporize the gasoline. By controlling the valve 27 the amount of air which is to. .'be mixed with the fuel may be controlled.

Inthe use 'of. this carburetor or gas former, the exhaust gasesbeingfo'rced up ward through the liquid gasoline or other fuel causes the liquid fuel tofoam. The

foam strikes against: the conical wallq12 and this causes a quick vaporization of the gasoline or fuel, which causes the; engine to start quickly. As soon as the engine has heated this top or wall 12, the-foam drops to within one inch above the false bottom- '19 or higher at higher speeds. It will be noted that "practically; the whole top. of the fuel-chamber, which topis formed by the wall or member 12, is heated by the exhaust so that any gasoline splashed-Y against this conical .wall' willbe vaporized and at the same time. the interior of the. fuel chamber is heated by the central, pipe and the divergent branches20. so that the gasoline is maintained in the best possible condition for,vaporization. All of the vapor is drawn upward Y againstjfthi-s lconical wall 12 and forced inward to pass-through the nozzle 22 with the least possible effort.

i or carbureting-mechanism is that it does not 4 pure carbureted 'fair.

- jets which are liable to clog ,orchoke up and limited to theuse of thecap-like valve 24, as

actualpractice has shown that greater mileage is secured'with this'carbureter than is.

possible-with other carbureters known to me. It will be understood that only a certainrelatively "small amount of. the exhaust gases pass upward through the liquid a .lineor otherfu 1. 1

The device is very simplajmay lee easily taken apart for cleaning, and it has no. deli cate parts which require more or less constant adjustment. 1 do not wish. to be obviously other means might be provided for controlling the amountof" gas or vapor allowed to flow into the air current passing upward-through the outletpipe 26."

the form of the invention as shown in Figures 4' and 5 of the drawing, themixing nozzle 22 is provided .with a spirally disposed slot 31 which is ada ted to register withaIsimil-ar .slot 32 provided in-a' sleeve.-

33 mounted upon the said nozzle. A stem connected with the said sleeve and and 32. The pipe 26 is provided with openings 26' and a pipe 34 is provided with an enlarged head 35 which surrounds the pipe 26'and the openings'26' therein. A butterfly. valve 36 is mounted in the pipe 34 in a usual manner.

, I claim a v 1. .A carbureter and gas former comprising a fuel chamber having a conical top, the fuel chamber being formed with a false bottom perforated adjacent its margins and spaced from the bottom of the chalnbeig an exhaust chamber surrounding the conical top of the fuel chamber and having an exhaust inlet and an exhaust outlet pipe, a central pipe extending upward from an opening. in the false bottom and having branches extending through the top of the fuel chamber into said exhaust chamber, 'means within the fuel chamber for maintaining liquid at a predetermined level therein, a discharge nozzle at the upper end of the fuel chamber, an outlet pipe surroundingsaidnozzle and into which the character described comprising a fuel chamber formed of a lower section and an upper p conical section attached to the lower section, One of the advantages of th1s gas making a false bottom disposed Within the fuel chamber and perforated, an exhaust chamber disposed-exteriorly to said conical top andenclosing substantially all of the conical top, the exhaust. chamber having an'exhaust inlet and an exhaust outlet, a central pipe leading upward from below the false bottom and having branches extending through the top and opening into the exhaust chamber,

a nozzle extending upward from the apex of the conical .top and formed with an aperture, a manually adjustable valve shiftable to control the amount of vapor passing through said aperture, an outlet pipe adapted to lead to the'engine and'surrounding said nozzle and extending downward to the topof the exhaust chamber and having air inlets, a valve surrounding said pipe and shiftable to-admit a greater or less amoun of air into saidpipethrough said nozzles,

and afloat valve in the lower end of the fuel chamber for controlling the amount of liquid fuel admitted to said chamber.

3'. As acharge former for internal combustion engines, a vaporizing chamber havinga false perforated bottom and having an outlet nozzle in its top, float controlled means for admitting liquid fuel to the bottom of said chamber, an exhaust chamber having 'air inlets adjacent the top of the ex- 10 partially surrounding said fuel and vaporhaust chamber, means for controlling the izing chamber and having an exhaust inlet amount of air entering through said inlets, and an exhaust outlet, means for admitting and means for controlling the amount of a portion of the exhaust from'said exhaust vapor passing from said nozzle into said chamber into the space beneath the false botpipe.- 15 tom of the fuel and vaporizing chamber, an In testimony whereof I hereunto affix my outlet pipe surrounding said nozzle and signature. I, adapted to be connected to the engine and JOHN M. LOSACK. 

